GFRP-steel hybrid reinforced concrete bridge deck slabs in Quebec, Canada

In GFRP-Steel hybrid reinforced concrete (RC) bridge deck slabs, the non-corrodible glass fiber-reinforced polymer (GFRP) bars are used in the top reinforcement mat and the steel bars are used in the bottom reinforcement mat. This technique is being used by the Ministry of Transportation of Quebec (MTQ) in collaboration with the University of Sherbrooke (UdeS) as it is expected to yield cost-effective and durable concrete bridge decks. This paper highlights the recent hybrid-reinforced bridge deck applications on the extension of Hwy 410 in Sherbrooke (Quebec, Canada). So far, the project included four hybrid bridges where three of them were single-span simply supported bridges (P-15501, P-15502N, and P-15502S) and the fourth one was three-span continuously supported bridge (P-15604). In addition, this paper presents and discusses the typical results of the live load field tests conducted on the P-15502S bridge using three calibrated trucks.